如何在单个Pipeline YAML中部署两个Kubernetes Manifest文件？

问题场景 #

现有如下Azure DevOps Pipeline YAML配置，需要在deploy阶段的KubernetesManifest@0任务中传入两个Manifest文件，尝试用逗号分隔路径的写法无法生效，求正确实现方式。

原Pipeline配置 #

trigger:
- master

variables:
  imageName: 'gosample'
  registry: 'kubreg.azurecr.io'

stages:
- stage: build
  jobs:
  - job: 'BuildAndPush'
    pool:
      vmImage: 'ubuntu-latest'
    steps:
    - task: Docker@2
      inputs:
        containerRegistry: 'ACR'
        repository: '$(imageName)'
        command: 'buildAndPush'
        Dockerfile: '**/Dockerfile'
    - task: PublishPipelineArtifact@0
      inputs:
        artifactName: 'manifests'
        targetPath: 'manifests'

- stage: deploy
  jobs:
  - deployment: 'DeployToK8S'
    pool:
      vmImage: 'ubuntu-latest'
    environment: dev
    strategy:
      runOnce:
        deploy:
          steps:
            - task: DownloadPipelineArtifact@1
              inputs:
                buildType: 'current'
                artifactName: 'manifests'
                targetPath: '$(System.ArtifactsDirectory)/manifests'
            - task: KubernetesManifest@0
              inputs:
                action: 'deploy'
                kubernetesServiceConnection: 'dev-kub-gosample-1558821689026'
                namespace: 'gosample'
                manifests: '$(System.ArtifactsDirectory)/manifests/deploy.yaml'
                containers: '$(registry)/$(imageName):$(Build.BuildId)'

无效的尝试写法 #

manifests: '$(System.ArtifactsDirectory)/manifests/deploy.yaml','$(System.ArtifactsDirectory)/manifest/ingress-nginx.yaml'

正确实现方式 #

KubernetesManifest@0任务的manifests参数支持YAML多行列表或空格分隔的字符串，以下是几种可行写法：

写法1：YAML多行列表（推荐，可读性强） #

将每个Manifest文件路径单独列为一行：

- task: KubernetesManifest@0
  inputs:
    action: 'deploy'
    kubernetesServiceConnection: 'dev-kub-gosample-1558821689026'
    namespace: 'gosample'
    manifests: |
      $(System.ArtifactsDirectory)/manifests/deploy.yaml
      $(System.ArtifactsDirectory)/manifests/ingress-nginx.yaml
    containers: '$(registry)/$(imageName):$(Build.BuildId)'

注：你之前的路径存在笔误，manifest/ingress-nginx.yaml应为manifests/（多一个s）。

写法2：空格分隔的字符串 #

在同一个字符串内用空格分隔多个文件路径：

- task: KubernetesManifest@0
  inputs:
    action: 'deploy'
    kubernetesServiceConnection: 'dev-kub-gosample-1558821689026'
    namespace: 'gosample'
    manifests: '$(System.ArtifactsDirectory)/manifests/deploy.yaml $(System.ArtifactsDirectory)/manifests/ingress-nginx.yaml'
    containers: '$(registry)/$(imageName):$(Build.BuildId)'

写法3：通配符（适用于文件符合命名规律的场景） #

如果两个文件都在manifests目录下，可直接用通配符批量匹配：

- task: KubernetesManifest@0
  inputs:
    action: 'deploy'
    kubernetesServiceConnection: 'dev-kub-gosample-1558821689026'
    namespace: 'gosample'
    manifests: '$(System.ArtifactsDirectory)/manifests/*.yaml'
    containers: '$(registry)/$(imageName):$(Build.BuildId)'

内容的提问来源于stack exchange，提问作者Caio Tavares